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For the Inventor, By the Inventor

Kitakyushu, Japan

Kazuki Otsuka

This inventor holds 15 USPTO granted patents. Top assignee: Toto Ltd.. Active years: 2020-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuki Otsuka. Retrieved from https://idiyas.com/inventor/kazuki-otsuka

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 4

Forward Citations = 40(Granted Patents)


Company Filing History:

goldMedal15 out of 1,232 
 
Toto Ltd.
 patents

Years Active: 2020-2025

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15 patents (USPTO):Explore Patents
1. D1089575 - Toilet seat (2025-08-19),
2. D1089574 - Toilet seat (2025-08-19),
3. D1067394 - Toilet seat (2025-03-18),
4. D999349 - Toilet (2023-09-19),
5. D954919 - Toilet seat (2022-06-14),
6. D952110 - Toilet seat (2022-05-17),
7. D886966 - Water closet (2020-06-09),
8. D884853 - Water closet (2020-05-19),
9. D884852 - Water closet (2020-05-19),
10. D884851 - Water closet (2020-05-19),
11. D884847 - Water closet (2020-05-19),
12. D882742 - Water closet (2020-04-28),
13. D882741 - Water closet (2020-04-28),
14. D882739 - Water closet (2020-04-28),
15. D882728 - Water closet (2020-04-28),

Title: Kazuki Otsuka: Innovator in Sanitary Solutions

Introduction

Kazuki Otsuka is a prominent inventor based in Kitakyushu, Japan. He has made significant contributions to the field of sanitary solutions, particularly through his work with Toto Ltd. Otsuka holds a total of 15 patents, showcasing his innovative spirit and dedication to improving everyday products.

Latest Patents

One of Otsuka's latest inventions is a toilet seat designed to enhance user comfort and hygiene. This invention reflects his commitment to creating practical solutions that address common needs in modern bathrooms.

Career Highlights

Throughout his career, Otsuka has been recognized for his inventive prowess and has played a crucial role in advancing the technology behind sanitary products. His work at Toto Ltd. has positioned him as a key figure in the industry, contributing to the company's reputation for quality and innovation.

Collaborations

Otsuka has collaborated with talented individuals such as Minoru Tani and Masafumi Ishikawa. These partnerships have fostered a creative environment that encourages the development of groundbreaking ideas and products.

Conclusion

Kazuki Otsuka's contributions to the field of sanitary solutions exemplify the impact of innovation on everyday life. His dedication to improving user experience through his inventions continues to inspire others in the industry.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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